545155199 has 2 divisors, whose sum is σ = 545155200. Its totient is φ = 545155198.

The previous prime is 545155189. The next prime is 545155211. The reversal of 545155199 is 991551545.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545155199 - 2²⁰ = 544106623 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545155129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272577599 + 272577600.

It is an arithmetic number, because the mean of its divisors is an integer number (272577600).

Almost surely, 2^545155199 is an apocalyptic number.

545155199 is a deficient number, since it is larger than the sum of its proper divisors (1).

545155199 is an equidigital number, since it uses as much as digits as its factorization.

545155199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 202500, while the sum is 44.

The square root of 545155199 is about 23348.5588206210. The cubic root of 545155199 is about 816.9084456603.

The spelling of 545155199 in words is "five hundred forty-five million, one hundred fifty-five thousand, one hundred ninety-nine".